net/smc: Fix an error code in smc_lgr_create()

If smc_wr_alloc_lgr_mem() fails then return an error code.  Don't return
success.

Fixes: 8799e310 ("net/smc: add v2 support to the work request layer")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/smc/smc_core.c

@@ -896,7 +896,8 @@ static int smc_lgr_create(struct smc_sock *smc, struct smc_init_info *ini)
 		}
 		memcpy(lgr->pnet_id, ibdev->pnetid[ibport - 1],
 		       SMC_MAX_PNETID_LEN);
-		if (smc_wr_alloc_lgr_mem(lgr))
+		rc = smc_wr_alloc_lgr_mem(lgr);
+		if (rc)
 			goto free_wq;
 		smc_llc_lgr_init(lgr, smc);